Effect of edge vacancies on localized states in a semi-infinite zigzag graphene sheet
- Authors: Glebov A.A.1,2, Katkov V.L.1, Osipov V.A.1
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Affiliations:
- Bogoliubov Laboratory of Theoretical Physics
- Moscow Institute of Physics and Technology
- Issue: Vol 104, No 12 (2016)
- Pages: 842-846
- Section: Condensed Matter
- URL: https://journals.rcsi.science/0021-3640/article/view/159819
- DOI: https://doi.org/10.1134/S0021364016240024
- ID: 159819
Cite item
Abstract
The effect of vacancies on the robustness of zero-energy edge electronic states in zigzag-type graphene layer is studied at different concentrations and distributions of defects. All calculations are performed by using the Green’s function method and the tight-binding approximation. It is found that the arrangement of defects plays a crucial role in the destruction of the edge states. We have specified a critical distance between edge vacancies when their mutual influence becomes significant and affects markedly the density of electronic states at graphene edge.
About the authors
A. A. Glebov
Bogoliubov Laboratory of Theoretical Physics; Moscow Institute of Physics and Technology
Author for correspondence.
Email: glebov.atth@gmail.com
Russian Federation, Dubna, Moscow region, 141980; Dolgoprudnyi, Moscow region, 141700
V. L. Katkov
Bogoliubov Laboratory of Theoretical Physics
Email: glebov.atth@gmail.com
Russian Federation, Dubna, Moscow region, 141980
V. A. Osipov
Bogoliubov Laboratory of Theoretical Physics
Email: glebov.atth@gmail.com
Russian Federation, Dubna, Moscow region, 141980
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